Problem while exporting .svg file in blender
The line that says "DLL load failed: %1 is not a valid Win32 application" gives a clue. You can find it documented at https://docs.blender.org/manual/en/dev/troubleshooting/python.html#mixed-python-libraries-dll-s

A simple fix is to delete or rename "C:\Users\\AppData\Roaming\Blender Foundation\Blender\2.79" and restart Blender. Then you will need to reinstall or re-enable all your addons.